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Finding the Fourth Proportional to 98,598.55, 148,029.17 and 66,684.80

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Solution

The fourth proportional to 98,598.55, 148,029.17 and 66,684.80 is: 100,116.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,598.55 : 148,029.17 = 66,684.80 : x
  2. Step 2: Convert to fraction form
    98,598.55/148,029.17 = 66,684.80/x
  3. Step 3: Cross multiply
    98,598.55x = 148,029.17 × 66,684.80
  4. Step 4: Simplify right side
    98,598.55x = 9,871,296,132.40
  5. Step 5: Solve for x
    x = 9,871,296,132.40/98,598.55
  6. Step 6: Final answer
    x = 100,116.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.